YET ANOTHER FTP?

DOES XBOX HAVE TO BE ON EVOX DASHBOARD? MY XBOX IS ON UNLEASH X. IF I HAVE TO CHANGE DASHBOARD TO EVOX SKIN IT WORKS UNTIL I SHUT THE XBOX OFF.THEN WHEN I TURN IT BACK ON IT IS BACK TO THE UNLEASH X DASHBOARD.IS UNLEASH X THE DEFAULT DASH,IF SO HOW DO I CHANGE IT,OR CAN I LEAVE IT BE THANKS .